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Whether you decide to go with a feature-packed cordless grinder or a no-nonsense corded angle grinder, there are several essential traits that should be on your checklist when choosing a new grinder.
The last thing you want to do is adopt a relatively expensive cordless angle grinder, only to find that the runtime is inadequate demands of your job.
Now, you might be thinking, "well, I'm buying a corded angle grinder, so suck eggs, Columbo". Okay then, let me counter that nonsensical childish point with some highly insightful words of wisdom, delivered to you via this $18 keyboard. Yes, runtime and power are not a handicap when using a corded angle grinder, although you will be unpleasantly surprised to know that like any other power tool, corded angle grinders have limitations.
The obvious one is the annoying power cord that requires you to unwillingly hunt down a power outlet to get your grind on. In other words, no matter which way you go, you're still going to encounter potential issues with any grinder if you don't do your due diligence and research.
So, on that note, scroll a little further to feast your eyes on the following angle grinders that we have deemed to be the best in 2020 so far.
While the pros might generally scoff and dismiss anything Black+Decker brings to market, you really shouldn't if you're after a stout corded angle grinder for all of your future DIY projects.
Okay sure, power tools like the BDEG400 aren't the most practical of power tools for construction site projects, although that's not what tools like BDEG400 were manufactured for. When you're buying a grinder like the BDEG400, you're getting a 4-1/2 inch grinder with a powerful 6.5 amp motor and a durable metal gearbox, that has the everyday handyman in mind.
The Black+Decker BDEG400 could very well be considered the best budget 4-1/2 inch angle grinder ever produced. This exceedingly affordable corded angle grinder caters to cash-strapped individuals conducting DIY projects like no other grinder on our list.
Pricing aside, one of the best features about the BDEG500 angle grinder is the metal casing encompassing the robust gearbox. The metal gear case is made of high-grade medium carbon steel that as been nicely machined which will help protect all the internal components. As a result, the reliability of the motor and gearbox is greatly enhanced, which will help increase the overall longevity of the grinder.
When it comes to power and performance, the Black+Decker BDEG400 generates a modest, yet very capable 6,500 RPM with its 6.5 amp brushed motor. While those aren't panty-dropping performance statistics worth drooling over, they are definitely ample for the majority of DIY tasks. In terms of build quality, the internal components of the BDEG400 are surprisingly impressive! The BDEG400 utilizes industrial-grade sealed bearings and the motor windings are also coated in an epoxy resin to prevent electrical failure.
The Black+Decker BDEG400 also features a comfortable 3-position side handle with a thick nylon/rubberized grip. Having a grinder like the BDEG400 with a 3-position handle fitted to it provides a greater degree of control while operating in hard to reach or confined spaces.
The BDEG400 makes use of a standard no-frills push-button spindle lock which undoubtedly makes life a lot easier when it comes to change discs. Speaking of changing discs, the wheel guard of the BDEG400 has a quick release feature that allows you to rotate and or remove the guard with absolute ease.
Black+Decker has also strategically situated the one-touch release switch with the BDEG400 at fingers reach to assist with shutting down the grinder swiftly. This little benefit will help increase your productivity once you get accustomed to using the BDEG400. When you have mastered the art of grinding, you will likely find this 4-1/2 inch grinder an extremely valuable asset in your tool arsenal.
The build quality of the Black+Decker BDEG400 might be more impressive than its modest price tag. Most grinders in the same price range of the BDEG400 are utter garbage, but with the BDEG400 you're getting a well-engineered robust little beast.
One small drawback would be the fact that the Black+Decker BDEG400 does run a little rough and is quite noisy when under load. Another negative worth whinging about is the limited number of accessories that are included with the BDEG400. Aside from a grinding wheel and a spanner wrench, there aren’t any other accessories worth mentioning.
The Dewalt DCG414T2 really is the cordless angle grinder you've been eagerly awaiting. Why's that? Because this ferocious fiend for a grinder lays claim to Dewalt's Flexvolt™ technology that delivers blistering corded performance, and in some cases, even surpasses its corded counterparts.
Dewalt has honestly pulled out every trick in the bag with the DCG414T2, and for the asking price, you'd rightfully assume so. That said, is the cost associated with the DCG414T2 worth the investment on your part?
Let's dig a little deeper and find out.
The number one question you should ask yourself when contemplating purchasing the Dewalt DCG414T2, is do you really need it?
Do you really need a cordless angle grinder that possesses an incredible high-tech brushless motor that in terms of power, is the equivalent to a 13 amp corded angle grinder? Probably not. But did the late Johnny Holmes really need an 11-inch wrecking machine for a slong? Again, probably not. But like the DCG414T2, I'm sure neither part complained once they had it in-hand.
The Dewalt DCG414T2 is a complete party animal for a grinder that boldly barges its way onto the scene with it's striking good looks and feature-packed attributes. The DCG414T2 is a 4-1/2 inch to 6-inch grinder that provides immense versatility. You can pursue heavy-duty projects on a larger scale due to it's potential increased cutting capacity allowing you to fit a cutting wheel up to 6-inches.
For a cordless angle grinder, this is honestly game-changing. Switching out discs is super simple as it's done so smoothly thanks to the tool-free feature. There is also an Allen wrench included with the kit just in case you do actually need if for any reason.
Maneuvering the DCG414T2 is done so with minimal effort as it weighs just 5.1 lbs with a 6.0Ah Flexvolt™ battery fitted to it. DeWalt's Flexvolt™ range is nothing short of astonishing. You can push their power tools like the DCG414T2 to the utter brink and experience zero resistance as the 6.0Ah Flexvolt™ battery seems to know no limits.
The structure of the DCG414T2 has some neat little nuances in comparison to other grinders and DeWalt's engineering team seems to have heavily focused on the ergonomics. The DCG414T2 utilizes a comfortable two-finger trigger switch with a handy safety override feature. Now while we loved this about the DCG414T2, if you've become conditioned to operating a grinder with a paddle switch feature, this may take some getting used to.
One must-have safety feature that DeWalt incorporated with the DCG414T2 is the electric brake system that engages immediately when the trigger is released and stops the wheel in under 1.5 seconds. On top of that, whenever a pinch or stall is detected, DeWalt’s E-Clutch system activates within 1/10 of a second. Likewise, the brake is engaged immediately when the tool senses kickback and the tool shuts itself off.
You're getting a whole lot of grinder with the DCG414T2 and there's plenty more we could ramble on about with this groundbreaking cordless angle grinder. It has very few flaws if any at all, although, you can probably already assume that everything mentioned comes at a cost.
Simply put, this is a top tier commercial grade angle grinder that outperforms everything else in its class. This cordless angle grinder possesses all the beneficial characteristics of your regular cordless angle grinder, yet delivers solid corded angle grinder performance.
This comes down to personal preference, but the two-finger trigger switch fitted to this model may not be your cup of Jim Beam Black. If you do favor the paddle switch set-up, you might want to ponder your options.
Porter-Cable is a well-respected tool manufacturer that has been developing and delivering tools of all sorts since the early 1900s. They were actually the first company to produce the first portable belt sander in 1926. Not the most amazing claim to fame, but still noteworthy none the less.
Fast forward nearly an entire century and Porter-Cable has managed to deliver one of the best cordless angle grinders available today. The PCC761B 20V MAX 4-1/2 Inch Angle Grinder boasts this outlandish declaration with a whole horde of excellent features and some solid design characteristics.
The initial underlying attribute worth highlighting among all others with the PCC761B is its overall assembly and design. This rugged cordless angle grinder has been staunchly constructed and its resemblance is somewhat reminiscent of that large lever loop shotgun Arnold was slaying fools with in Terminator 2.
And yes, I'm aware that there is zero correlation between the two tools. Although just like that beautiful instrument of mayhem Arnie was wielding like a deranged cyborg, the PCC761B also features a trigger mechanism to unleash hell. So yeah, same-same but different.
Apart from the appealing appearance of the PCC761B, this cordless 4-1/2 inch angle grinder harbors a high-performance brushed motor that you expect to see in a cordless angle grinder in an entirely different price bracket.
When attempting to aggressively maul a hulking piece of metal like a hangry brown bear on an early summer's morning, you're going to need a grinder with about as much gusto as that ruthless furry killing machine that is now rummaging through the back of your ravaged Yukon. And that's why the PCC761B can do the kind of damage required, as the powerful motor that is equipped to this artificial critter can generate a whopping 8,500 RPM.
When it actually comes to handling the PCC761B for your cutting and polishing needs, you can comfortably man-handle this feral slicing machine by gripping its contoured over-molded handle. After an extended period of time working with the PCC761B, we came to the abrupt conclusion that this cordless grinder is most certainly optimized for increased comfort.
While the ergonomic design of the PCC761B will unquestionably reduce user fatigue when enduring prolonged periods of use, it isn't exactly the lightest grinder on the market. It weighs around 7.4 lbs with a 4.0Ah battery fitted to it which is most certainly on the heavy end of the scale. Although the bulk and weight of the PCC761B is rather shocking, it is exceedingly well balanced and with the battery connected,
The PCC761B also makes use of a sealed switch housing. This boosts the durability even further as it eliminates the risk of getting dust and debris inside the mechanism of the switch. A few other final defining qualities worth bragging about with the PCC761B is the standard 3-position side handle, the quick release guard system, and the spindle lock that is activated via a big red push-button.
All-in-all, this is outstanding value for a mid-level cordless angle grinder, especially so considering the price. Brilliant bargain buy.
One thing that stood out about the Porter-Cable PCC761B is just how smoothly it operates. This is most likely because of the high-quality cast metal gear housing that dulls the sound of the gearbox and high-performance motor under load. The end result is a cordless angle grinder that is quieter than most other models.
While the Porter-Cable PCC761B would be considered a cost-effective cordless angle grinder, it does possess some additional unforeseen costs you might want to be aware of now, and not later. This model only comes as a bare tool. So if you already don't own a Porter-Cable lithium-ion battery, you're going to have to cough up as batteries are not included.
If you’re less budget-constrained and you’re looking for an exceptionally powerful and exceedingly versatile angle grinder, then perhaps the Makita XAG04Z could be the shiny new workhorse you've been scouring the internet for.
Makita seems to be constantly rolling out one new high-tech feature after another throughout its entire range of power tools. But does the complex and sophisticated technology utilized by Makita with the XAG04Z actually equate to a superior power tool?
The Makita XAG04Z Cordless Angle Grinder a hybrid model that can accommodate both a 4-1/2 inch and 5-inch disc which provides excellent versatility. Apart from the immense flexibility the XAG04Z delivers, it also possesses a colossal amount of power for cordless angle grinder with it's BL™ brushless motor that generates 8,500 RPM. Makita also employed a rather complex feature that electronically-controls the brushless motor by efficiently regulating the power consumption to dictate the amount torque and speed the XAG04Z churns out. And is that's not enough, you can always adjust the cutting speed via a variable speed switch setting.
While that's all fine and dandy for those that are engaging in heavy-duty jobs that require the extra oomph, that additional power does have one disadvantage you should give some thought to. The one drawback with all that power is the diminishing effects it will have on the battery you're using. So quite simply put, if you are thinking of purchasing this cordless angle grinder and don't already own a Makita 5.0Ah Lithium-Ion battery, you're going to need one... or two.
As with most cordless angle grinders, the XAG04Z is admittedly on the heavier side when compared to most other models. Granted 5.8 lbs isn't a stupendous amount of weight to be swinging around while you're butchering sections of mild steel for your own amusement, it's something you might want to consider with a larger capacity battery fitted to it. That being said, the weight is less of a concern with the XAG04Z due to its overall ergonomic design, rubberized grip, and comfortable handle.
While you're proudly causing chaos annoying the living daylights out of your neighbors with the XAG04Z, you'll be able to keep an eye the grinders runtime as it's equipped with a 3-stage LED battery capacity display. This handy little feature will most definitely maximize your productivity if you're utilizing two batteries as you can continually rotate without any interruptions effectively. This neat mini-feature is one that most other cordless angle grinders surprisingly don't seem to bother with and is very underrated.
The XAG04Z is also loaded with safety features for overload, over-discharge, and overheating protection. Makita has attached a whole bunch of unique acronyms describing these cool safety features, and while we could run through them all now, you'd really be none the wiser. All of these electronic protections and safeties work behind the scenes to administer measures of control and modulate essential defenses to reduce potential mechanical failure.
One attribute we appreciated about the XAG04Z and is surely worth mentioning is the soft-start feature. This motor protection feature functionally suppresses the start-up load to help minimize latent strain on the expensive spiral bevel gears. The final characteristic worth highlighting about the XAG04Z is the wire mesh that has been installed over the air intake ducts. This superb finishing touch by Makita helps prevent dust and other minuscule debris from invading the motor housing and damaging the windings.
Lastly, Makita XAG04Z also comes with quite a few accessories, which include: cutoff wheel guard, tool-less wheel guard, lock nut wrench, thin cut off wheel, grinding wheel, and side handle. It truly is a great grinder to break out of the box and get to work.
The ease of operation is perhaps the main highlight of this model. Along with the obvious power and reliable performance courtesy of Makita, the ease of use makes this a beginner-friendly tool. Its main advantage, of course, remains the cordless design which spares you from having to find your footing and minding the power cord.
Given the fact that the battery is not included, the Makita XAG0Z might be slightly expensive for some homeowners, but it will work with any other Makita LTX Lithium-Ion battery. It’s probably best suited for professional metal workers, plumbers, and others that can justify the expense of the investment.
The DeWalt DWE402 has quite possibly established its self as the king of small corded angle grinders for a myriad of credible reasons. This gutsy small angle grinder has been making robust metal materials its bish for more than half a decade.
There's a lot to be said about a power tool that can withstand the test of time and has endured very little criticism along the way. The DWE402 has been passed around like a fresh blunt at a Snoop Dogg record release party and received nothing but applause. But does that mean you should jump on board with the rest of the superfans and add this grinder to your tool collection?
Let's see, shall we...
There are two things that will last you a lifetime while you're alive and sucking oxygen on this beautiful bluey-green globe. Your other halfs persistence to pester you to take the bins out, and the DeWalt DWE402. Now you're probably thinking, what's the difference between the two? Well, one (with the right training) can be controlled and manipulated to deliver outstanding results, and the other is a super powerful 4-1/2 inch angle grinder.
DeWalt built this rugged angle grinder to not only fiercely power its way through dense materials like tough rebar, but to do so for an eternity. This 4-1/2 corded angle grinder is terrific in terms of build quality and the overall design of the DWE402 has been optimized for those seeking attention to detail and improved ergonomics. The 3-position handle can be placed on all sides of the grinder allowing it to accommodate both right- and left-handed users with ease.
Even with the DeWalt DWE402 being considered an entry-level budget-friendly small angle grinder, DeWalt still managed to fit a Dust Ejection System to this model to boost the longevity of the tool. This Dust Ejection System feature helps protect the 11 amp motor from contaminants, well also providing an amplified cooling effect over the motor by which this process effectively removes excessive heat.
So, by now you're no doubt wondering... what's powering this famed 4-1/2 inch grinder and is its bark as big as its bite? Well, with DeWalt's next-gen 11 Amp motor punching out 11,000 RPM of outright madness, you better believe it. The DeWalt DWE402 can claim a whole rode of dominant performance metrics over all other small angle grinders. But the one benchmark stat that sticks out among all others with the DWE402, is the fact that the 11 Amp motor that is equipped to this brute provides the best power-to-weight-ratio available today.
In regards to functionality, the DWE402 is incredibly simple to use and DeWalt has incorporated a range of useful features to vastly increase user efficiency. DeWalt's One-Touch ™ Guard system permits the guard to be rotated a full 360-degrees with one hand. Now when it comes to switching out cutting wheels in a hurry and without the burden of using a specific tool wrench, DeWalt's Quick-Change ™ Wheel Release system allows you to do so at practically warp speed.
Another cool feature with the is the DWE402 is the much-loved paddle switch set-up that is super responsive. Ideally, you'll want to opt for the version of this grinder with the lock-on switch as holding the paddle switch for extended periods will become tedious. With regards to weight, this corded grinder weighs in at 6.2 lbs and is roughly 12-inches long. So while it's obviously it's not the lightest, it's clearly been constructed to last, which means, you can treat this tool with the appropriate amount of disrespect and contempt, without any consequences.
The price point of the DWE402 is among one of the lowest 4-1/2 inch angle grinders we reviewed. Considering all the highly functional features and remarkable build quality, the DeWalt DWE402 is undoubtedly the angle grinder that would be considered the best bang for your buck.
While the DeWalt DWE402 is considered a small angle grinder, that phrase merely describes it's application. At 6.2 lbs and around 12-inches long, this corded angle grinder possesses some size and bulk. So if you do unfortunately happen to have micro-sized mittens, you might shop around as this grinder is probably better suited for those individuals with regular-sized man hands.
The most common disc size is 4.5” for the fact that it’s the most popular class of angle grinders. It’s also considered by many the most versatile size for a handyman’s arsenal. But that’s not to say that that angle grinders can’t be larger; they can be as large as 7 or 9 inches, which are better for deep cuts and for polishing larger areas.
With that in mind, the size of the disc is just one of many important features. You should also consider the disc types that come with the grinder before buying or at the very least, the disc types that are compatible with the grinder.
These are used to cut through pipes, bolts, rods, rebar, and other hard materials.
Grinding discs can be used for shaping edges or to sharpen various garden tools and dull edges.
The diamond-tipped teeth give them enough cutting power to be used on tile, granite, concrete, masonry, and so on. They can also be used for both dry and wet cutting.
With sanding pads, you can clean surfaces off old paint. You can also use them for fine sanding or coarse sanding, depending on the abrasiveness of the disc.
This type of disc is commonly used in woodworking.
Wire brushes are used to remove rust and to remove flaky paint off various metals.
These discs are ideal when you’re trying to shape metal. They can help you grind down various excess materials such as welding.
Motor power is an interesting subject. You may find that the motor power can be expressed in watts, amps, volts, or CFM (cubic feet per minute). Of course, Watt is the unit for electrical power. The rest are power broken down or translated.
As you might know, power is the product of current and voltage (P = IV). Therefore, if you know the current (A) and voltage (V), you already know the power. CFM, PSI, RPM, etc. is a translation of motor power to real-world usage. So, instead of telling you this grinder is 800W, a manufacturer might simply tell that it translates to 8,000 RPM, for example.
Corded angle grinders have their input power expressed in current (since we already know the voltage). For pneumatic grinders, manufacturers use CFM and PSI to show what the power rating translates to.
In other cases, you may find that horsepower is also used. For a quick comparison, 1,000W roughly translates to 1.34HP.
Power is very important. Usually, the larger the grinder, the larger the motor, and therefore, the higher the power. But what’s most important is to match large discs with a high output.
This is one of the ways of ensuring smooth polish and deep cuts with the larger wheels. Another thing to remember is this. For two grinders with the same power rating, the speed will be inversely proportional to the torque.
Dust management is important for two reasons. For one, good dust management increases the longevity and reliability of an angle grinder. Secondly, it’s a safety feature that prevents you from getting hit directly by dust and debris coming at you at high speed.
Various manufacturers tackle dust management in their own unique way. Some are obviously better than others at this, but the main principle remains the same. Angle grinders are fitted with a vacuum attachment that ejects dust and debris out the opposite side of the machine, away from where you’re working.
There’s no reason why you shouldn’t want ease of use and comfort when handling a power tool. Therefore, a cordless angle grinder is arguably the best angle grinder from a comfort standpoint.
This type of tool is lighter and easier to work with. There’s no cord that can get in your way and you’re not restricted in range. Of course, there are other features that make an angle grinder more comfortable to use than others.
For example, if a cordless tool won’t deliver enough power for your application, you should at least look for an ergonomic non-slip grip. You should also look for removable or at least adjustable side handles. These don’t just make it more comfortable to use the tool, but it will also let you use it in tight spaces.
Locking triggers can also make the tool easier to use during continuous operations.
Speed ratings may seem all over the place if you’re unfamiliar with angle grinders. Some might be tempted to believe that higher is better.
This couldn’t be further from the truth. You see, speed or the RPM is given by the manufacturer as “no-load speed.” This means that it’s the maximum speed the grinder can put out without a disc installed.
What does this mean for you? It means that a smaller angle grinder may look better on paper than a larger model. But it doesn’t mean that under full load, you will be able to get a deeper cut or a better polish than you would from a larger grinder with a more powerful motor.
When comparing two grinders of the same speed rating, you should also look at the power rating in order to determine the torque. In the case of equal speed grinders, the one with the higher power output will give more torque.
Always hold an angle grinder firmly. Your free or non-dominant hand should always hold the side handle, assuming you’re not using a top handle grip.
Like all cutting power tools, always let the disc reach full speed before you bring it into contact with the work surface.
All angled grinders come with their own manuals. Therefore, there might be slight differences in how to approach and use them.
Just remember to always cut and grind at the recommended angles to avoid injury. Also, remember to avoid applying too much pressure when cutting. This could cause an average quality disc to bend or break.
First, you’ll have to turn off the grinder and remove the power source. This is necessary to avoid any accidental power-ups while you’re changing the blade or disc.
You can either remove the blade guard first, with a screwdriver, or proceed to removing the disc. There might be slight differences to this step, depending on the model of your angle grinder. However, for the most part, this should work on all angle grinders.
Press the spindle-lock button if the grinder has one and try to lock the disc in place. Keep holding the button down as you’re removing the clamping flange with the special wrench. Remove the disc and replace it with a new one. Be sure to install it in the same way as the old one.
An angle grinder or disc grinder is a handheld power tool often seen on construction sites and in the metal fabrication field. It is used for abrasive cutting (grinding) and polishing, among other tasks.
The angle grinder is distinguishable from similar tools by the fact that the gear head and disc form a 90-degree angle. Other notable differences may include increased motor power and overall versatility.
An angle grinder can be the ideal tool to grind out loose mortar. You can also use it to cut through concrete and stone or to cut tiles to size. For cutting tile, it’s best to use a dry-cut diamond disc.
When using a cutoff disc, the angle grinder can help you make short work of various metal cutting tasks such as: cutting rebar, wire fencing, rusted bolts, angle iron, and so on. Note that angle grinders can also be fitted with wire brushes.
A wire brush disc or wheel will allow you to remove flaking paint and remove rust. Depending on the type of brush, you can use it for flat areas or uneven surfaces. Last but not least, you can also use an angle grinder equipped with a grinding wheel to repurpose old tools.
Grinding discs can help you sharpen dull blades or dull edges on tools such as shovels, axes, hoes, and others. It’s worth pointing out that this type of work requires skill and care. That’s because this can overheat the blade and affect its sharpness retention.
The versatility of angle grinders comes from its design and ability to use different discs. Although the main use of an angle grinder is grinding and cutting.
That said, angle grinders are widely used to also polish, sharpen, and clean various tough and stubborn materials. Whether you're attempting to clean up a weathered piece of scrap metal for a future project or slice through some tile for a bathroom renovation, there's really no limits to what you can accomplish with the right angle grinder... and the right wheel/disc.
If you’ve landed on the DEWALT DCG414T2 60V MAX Brushless Angle Grinder, then you’ve made a good choice. Its consistent performance, comfortable design, and adjustability make it a reliable workhorse for many household chores, art projects, and certain worksite jobs.
However, if you’re strictly looking to pay the least amount of money without compromising performance, then the Black+Decker BDEG400 4-1/2 Inch Angle Grinder is a fantastic angle grinder to have in your arsenal as well.
Finding the right grinder can be tough. But hopefully, with our guidance, you've been able to determine which angle grinder is deemed necessary for your needs. Is it vital to buy the most powerful grinder with every imaginable high-end feature? Hell no!
In theory, any of one of these corded or battery-powered beastly barbarians will get the job done, that's why each of them made our list. But, deciding whether or not any of these fiendish power tools are ideal for your would-be DIY projects or daily construction works, is entirely up to you. As always, if you have any questions at all or require further advice, hit us up below in the comment section. Best of luck!
My name is Michael McDonnell, and I’m the creator of The Tool Scout. I’m a mechanical engineer by trade with over 20 years of experience in the construction industry. I started The Tool Scout because I love talking about everything DIY related and figured I could help others with the decision-making process when it comes to selecting the right tools for the right job.
Apart from being a blue-collar kinda guy on a relatively noble quest to help others, I’m also a serial entrepreneur and an obvious lifelong Lakers fan. 🏀